Trailer lock



FIG. 1 is a front top right perspective view of a trailer lock showing my new design;

FIG. 2 is a rear bottom left perspective view thereof;

FIG. 3 is a rear bottom right perspective view thereof;

FIG. 4 is a rear top left perspective view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left elevational view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a top side view thereof; and,

FIG. 10 is a bottom plan view thereof.

The broken lines in the figures are for the purposes of illustrating portions of the trailer lock, which form no part of the claimed design. 

CLAIM The ornamental design for a trailer lock, as shown and described. 